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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Pressure
Flow
Density
Distance

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Velocity of jet to the velocity of Pelton wheel
Velocity of Pelton wheel to the velocity of jet
Diameter of jet to the diameter of Pelton wheel
Diameter of Pelton wheel to the diameter of jet

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Hydraulics and Fluid Mechanics in ME
The velocity of the liquid flowing through the divergent portion of a Venturimeter

Increases
Decreases
Remains constant
Depends upon mass of liquid

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Hydraulics and Fluid Mechanics in ME
If the ratio's of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

Geometric similarity
Dynamic similarity
Kinematic similarity
None of these

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Hydraulics and Fluid Mechanics in ME
The Fourneyron turbine is _________ reaction turbine.

An outward flow
An inward flow
An axial flow
A mixed flow

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Hydraulics and Fluid Mechanics in ME
The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)

Q = Cd × a × 2gh
Q = (2/3). Cd × a × h
Q = (Cd × a)/√(2gh)
Q = (3Cd × a)/√(2h)

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